Autonomous system
AS50172 RATP
Unclassified RIPE NCC
Summary
RATP Group
transport government business infrastructure
RATP is the autonomous system for RATP Group, the French public transport operator.
What it's used for
- The address space carries internal corporate infrastructure, with both announced prefixes registered under the netname
RATPand registrantRegie Autonome Des Transports Parisiens. - The AS announces 768 IPv4 addresses across 2 prefixes while maintaining 43 observed neighbours, a ratio indicating a transit or peering-heavy role rather than a simple access network.
- Traffic from this AS consists of operational data, signalling, and administrative endpoints for the Paris metro, RER, and bus networks, supporting the control and management of public transport infrastructure.
Notable
- Registrants for both prefixes align perfectly with the announcer, identifying the holder as
Regie Autonome Des Transports Parisiens. - The address inventory is compact, consisting of a single /23 and a single /24 block, both located in France.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| France-IX Marseille | Marseille, France | 37.49.232.164 |
Transit providers
12 upstream, 0 downstream and 12 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 768 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| FR | France | 2 |
Registry
Allocation record
- Registry
- RIPE NCC
- Registered
- 2009-11-25
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS50172
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 3 naming AS50172
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere